Power plants – Motive fluid energized by externally applied heat – Process of power production or system operation
Patent
1994-10-14
1997-06-03
Gromada, Denise L.
Power plants
Motive fluid energized by externally applied heat
Process of power production or system operation
60648, 60650, 60682, F01K 1302
Patent
active
056343400
ABSTRACT:
One aspect of the present invention relates to a process of cogeneration utilizing a compressed gas energy storage system which includes a gas storage area, a compression train for pressurizing a gas to be stored in the gas storage area, and an expansion train for depressurizing high pressure gas released from the gas storage area. The process includes operating the compression train during off-peak electricity utilization periods to produce a compressed gas. The compressed gas is stored in the gas storage area and later released during peak electricity utilization periods through the expansion train to generate electricity. This reduces the compressed gas pressure and temperature. The gas can then be used for refrigeration by contacting it with a material to be chilled with that gas. One aspect of this invention involves generating electricity and effecting refrigeration by depressurization of natural gas from high pipeline transmission pressures to lower distribution pressures. A procedure for energy recovery is also disclosed.
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Basichas Alfred
Dresser Rand Company
Gromada Denise L.
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